CN102648626A - Device and method for camera control - Google Patents
Device and method for camera control Download PDFInfo
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- CN102648626A CN102648626A CN201080046857.7A CN201080046857A CN102648626A CN 102648626 A CN102648626 A CN 102648626A CN 201080046857 A CN201080046857 A CN 201080046857A CN 102648626 A CN102648626 A CN 102648626A
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- H04N7/00—Television systems
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- G—PHYSICS
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- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
- G06F3/04883—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures for inputting data by handwriting, e.g. gesture or text
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Abstract
The presented invention relates to a device and method for controlling the operation of one or more cameras associated with a video conference endpoint in a video conference call. A camera control unit (remote control) according to the present invention is a touch enabled end user component that presents to the user graphical objects representing video conference endpoints currently connected in a conference call, and/or one or more live video feeds currently captured by the video conference endpoint's cameras, and allows the user to manipulate a camera's pan, tilt and zoom using a touch screen display embedded in said camera control unit.
Description
Technical field
The present invention relates to be used for the touch screen control system of video conferencing system, and relate more specifically to be used for the method and apparatus of the video camera of control of video conference system.
Background technology
Conventional video conferencing system comprises via diverse network (for example WAN, LAN and circuit-switched network) and between it, transmits some end points that real-time video, audio frequency and/or data (so-called is the two-way video) flow.
In most of high-end video conferencing systems, have shake, the high-quality video camera of inclination and zoom capabilities is used to catch the view of meeting room and the participant in the meeting.Video camera has wide field of view (FOV) and high mechanical zoom capabilities usually.This had both allowed fine ground heddle to look at meeting room, the close-up image that also possibly catch the participant.Video flowing from video camera is compressed and sends to the one or more receiving positions in the video conference.Other position from meeting, whole positions in the meeting receives live video and audio frequency, therefore makes it possible to transmit in real time vision and auditory information.
Video conference alters a great deal when considering purpose, participant's quantity, meeting room layout etc.Each meeting configuration usually need be to the independent adjusting of video camera so that present optimal view.Can be before the video conference or during video camera is regulated.For example, sitting in 16 people's the video conference rooms at most, video camera is predisposed to and catches whole 16 available seat positions is natures.Yet if only there are 2 or 3 participants, the shooting machine width visual field of presetting will give the visual performance of non-constant to receiving terminal.
Usually use standard input device to accomplish to the adjusting of video camera, for example keypad on the remote controller or mouse are through hand-guided video camera pan, inclination and convergent-divergent, perhaps through between one group of predefine camera position, selecting.Usually, the conventional I R remote controller that has a standard button is used to regulate video camera.The setting of standard is that control is shaken and tilted and control the amplification of convergent-divergent and dwindle one group of four arrow key of button.
Regulate the button that usually needs on the remote controller or the repeatedly iteration of on-screen menu single system searching optimum video camera on the known system, this make its trouble, upset and be not very directly perceived.
Even the pan tilt mechanism of video camera comprises little stepping motor (allow " high-resolution " move), but video conferencing system usually is planned as progressively mobile camera so that so as not to the extra button of user.When video camera is among the wide FOV this by expection work, yet this can cause trouble when camera zoom because step becomes very big at that time.
In addition; If the user wants to control the video camera of far-end end points; The user need be through the single navigation of many on-screen menu so that visit Remote Camera control setting so; And if in meeting, connected a plurality of far-end end points then, from institute's connection end point tabulation, would select correct far-end end points so.This processing is a trouble, and it possibly be difficult to successfully accomplish for the user who lacks experience.
Therefore, the current known method that is used for control of video meeting video camera is trouble and makes us muddled that therefore video camera is often regulated by suboptimization ground in video conference, causes the video tastes that reduces.
Today, the user that technology is installed gets used to using easily and provides with the cooperation way between customized graphics environment and the equipment demand system of flexibility.Traditional video conferencing system is not very flexible.In addition, traditional video conferencing system uses the on-screen menu single system of the keypad control on the IR remote control equipment to operate, and causes the limited flexibility and the user experience of trouble.
Summary of the invention
An object of the present invention is to provide equipment and the method for eliminating above-mentioned shortcoming.Equipment is the touch screen remote controller that has like defined invention characteristic in the autonomous device claim.The invention method is defined in the independent solution claim.
The invention discloses the equipment and the method that are used for controlling the one or more video cameras relevant, and wherein control comprises and uses said touch-screen to revise video camera pan, inclination and/or convergent-divergent with one or more video conference endpoint through the figure general view that on said touch-screen, is provided at the video camera that conference call connects.
Description of drawings
More specific description according to the preferred embodiment of the invention, aforementioned and other purpose, feature and advantage of the present invention will be significantly (shown in accompanying drawings), spread all over different views in the accompanying drawings, and identical label refers to identical part.Accompanying drawing is not necessarily drawn in proportion.Focus on illustrating principle of the present invention.
Fig. 1 is the schematic overview figure that wherein can use example communication network of the present invention,
Fig. 2 is the schematic overview figure of prior art remote controller,
Fig. 3 is the schematic overview figure of touch screen control system of the present invention,
Fig. 4 is a block diagram of the present invention,
Fig. 5 is the schematic overview figure of an example embodiment of the present invention,
Fig. 6 is the schematic overview figure of another example embodiment of the present invention,
Fig. 7 is the schematic overview figure of another example embodiment of the present invention,
Fig. 8 is the schematic overview figure of another example embodiment of the present invention,
Fig. 9 is the schematic overview figure of another example embodiment of the present invention,
Figure 10 is the flow chart that illustrates according to the method for the invention,
Figure 11 shows the computer system that can realize the embodiment of the invention on it.
Embodiment
Below, will be through describing each embodiment, and accompanying drawing is discussed the present invention by reference.Yet those skilled in the art will realize other application and modification in like the defined scope of the invention in the independent claims that comprised.
The present invention relates to be used for controlling the operated system and the method for the one or more video cameras relevant with the video conference endpoint of video conference conversation.According to camera control unit of the present invention (remote controller) is terminal use's assembly of supporting touch; It presents the Drawing Object that the current one or more live videos of catching of video camera of video conference endpoint and/or the video conference endpoint of current connection in the expression conference call are presented to the user, and allows the user to use the touch-screen display that embeds in the said camera control unit to handle the shaking of video camera, inclination and convergent-divergent.
The network general view
Shown in Fig. 1 is the example that wherein can use communication network 10 of the present invention.Each user is connected to communication network through end-point devices 12.End-point devices is described in greater detail below.Preferably, communication network is Internet protocol (IP) network 14.Yet the user also can be connected to different communication networks, for example Integrated Service Digital Network(ISDN) (ISDN) 16.MCU (multipoint control unit) 18 also can be connected to the communication network 14,16 that the video conference conversation can be provided on it.Perhaps, one of said end-point devices 12 comprises the embedding MCU that is used to provide the multiple spot service.The some end-point devices 12 that reside in diverse location can be participated in identical meeting through one or more MCU, for example carry out switching and mixed function so that allow audiovisual terminals correctly to interknit.Each end points and therefore each audiovisual streams its own unique endpoint identifier (ID) is equipped with.
If the user from polytype communication network hopes to participate in the video conference conversation, two communication networks can use gateway 20 to connect so.It is the data that are suitable for crossing over every type network transmission with the transmission data transaction that gateway allow to use different protocol.
End-point devices
End-point devices 12 is to be connected to the equipment that communication network is used for the video and/or audio meeting, and it makes the user can cross over that communication network sends information and from its reception information.For video conference, if only connecting, the user receives voice data, end-point devices can be traditional telephone handset so.Yet more generally, end-point devices will support that receiving and cross over it from communication network sends video data and to user's display video data, and in the following video conference endpoint that is referred to as.
With reference now to Fig. 3 and Fig. 4.Specifically with reference to figure 3, exemplary video conferencing endpoints as known in the art is indicated by label 20 usually.End points 20 comprises the video camera 21 and microphone 26 that video and audio signal is provided to codec (CODEC) 23, and codec 23 provides audio-video signal to one or more monitors 24.Also can the signal from external multimedia source 25 (for example VCR, DVD player, document video camera, personal computer etc.) be provided to codec 23.Like what understand through the double-headed arrow between codec 23 and the external source 25; Codec 23 can receive from external source and will be presented at the data-signal (for example video, audio frequency, still image etc.) on the monitor 24, and/or can be sent to other video endpoint that is connected to video endpoint 20 via network 14,16 from the signal of external source.
H.323 video conference endpoint is preferably or SIP end points (if it is connected to IP network), perhaps is preferably H.320 end points (if it is connected to isdn network).H.323 and H.320 be the defined standard of International Telecommunications Union.
Video endpoint also can be equipped with Remote Camera control (FECC) ability.Traditionally, the FECC ability visits through selecting the button 24-36 on the user input device 22 (for example among Fig. 2 with IR remote controller shown in Figure 3).FECC order is transmitted to identical communication link as the Voice & Video data and be used to control another video endpoint.For example, they allow that the user makes that another video camera (except themselves) shakes, convergent-divergent, inclination or focusing.Can use signaling protocol message (for example ITU-T.H.281 or H.323 appendix Q) will order and send to another video conference endpoint from the video conference endpoint of control.
Codec 23 has and allows the user to use camera control unit 40 in planning, to change the API of the shaking of end points video camera, inclination and/or convergent-divergent." API " is the abbreviation of " API ".Further with reference to figure 3, the API communication between camera control unit 40 (or remote controller) and the codec 23 is via 47 exchanges of the port in port in the codec 23 28 and the camera control unit 40.This interface via port 28 visits allows the present invention to communicate by letter with codec 23, so that can the command sequence of expectation is provided and receive response from codec 23 to codec 23 according to camera control unit 40 of the present invention.
With reference to figure 4, assembly of the present invention is usually indicated by label 40 and touch screen display unit 41, personal computer 43 and the graphic generator 45 of comprising in sight.As being seen, personal computer 43 has the port 47 that is connected to communication link 56, and communication link 56 is connected to the API COM1 28 of codec 23.
Touch-screen display 41 comprises that lcd screen maybe can change other video display technology (CRT, OLED, plasma etc.) of size.Except display screen, touch-screen 41 comprises the hardware of using x ' and y ' coordinate detector to cover display/screen.When object (finger, stylus etc.) when touch-screen display is exerted pressure (touch), it sends order to computer 43, said order comprises the x ' and the y ' coordinate of pressure institute application point at least.
According to one example embodiment, codec 26 comprises video converter 49.Video converter 49 receives one or more video conference streams near end camera/end points receiver, video stream/video conference stream and/or from the far-end video conference endpoint; Handle video flowing/video conference stream, and output has reduced by one group of video flowing of the correspondence of resolution and/or bit rate.According to one example embodiment, video converter 49 through according to the many standards that are used to real-time application encoded video (for example ITU-I H.261, H.262, H.263, H.264 or similar video encoding standard) one of coding institute receiver, video stream generate one or more video flowings.According to another example embodiment of the present invention, video converter grasps the snapshot of institute's receiver, video stream at interval with predefine, and before it is output as a series of snapshots video flowing, adjusts the snapshot size then.Video flowing is adjusted size, because the video conference endpoint monitor 24 that the size of touch-screen display usually is directed against than institute receiver, video stream is big or small little.The typical case of this embodiment can be in 30 of per seconds shine the scope of per 5 seconds 1 snapshots soon at interval.
In response to from codec 26 reception information, computer generates the graphic user interface (GUI) that will on touch-screen display 41, show.GUI is used to control the operation of one or more video cameras, for example near end camera or Remote Camera.Graphic user interface also can comprise can be presented at many touch controls, menu and the dialog box that is used for user's operation and control end points X on the touch-screen display 41.For example, GUI can allow the user to initiate or reply video call; Break off one or more video callings; The nearly section of control video camera; The control Remote Camera; With other exemplary video conference actions.
According to one embodiment of present invention, when video conference when beginning conversation, codec 26 sends that the expression meeting begins and the participate in a conference signal of unique Conference ID of video conference endpoint of conversation of sign at least to camera control unit.In response to receiving signal from codec 26; Under the control of personal computer 43, graphic generator 45 generates and provides graphic user interface to be used for allowing the operation of the one or more video cameras relevant with one or more video conference endpoint of video conference conversation connection via port 42 to touch-screen 41.Perhaps, only from user's request the time, generate and be provided for allowing the graphic user interface of the operation of one or more video cameras to touch-screen 41.As shown in Figure 5, graphic user interface is made up of scene 51, and its scene 51 is the institute's defined ranges that comprise Drawing Object 52.Scene 51 can with or significantly the border mark, and if scene do not mark, scene will be rendered as the part of background so.A video conference endpoint that connects in the ongoing conference call of each Drawing Object 52 expression.According to another example embodiment, except scene, graphic user interface also comprises menu area 53.
According to one embodiment of present invention, Drawing Object 52 is images of the video conference endpoint represented respectively of sign Drawing Object.Said image can be the text (the for example title of participant's name, video conferencing system (for example endpoint id), location name that video conferencing system was positioned at etc.) or above-mentioned two or more the profile of combination of the image that generates of one or more personnel (incarnation), computer, photo, description video conference endpoint.
According to another embodiment of the invention, Drawing Object is the live video of presenting from the video conference endpoint that connects.Live video is presented by above-mentioned video converter and is provided.As shown in Figure 6; When the user touches the screen of (touch that symbol 62 expression touch-screen systems 41 are registered) touch-screen system 41 with object (for example finger or stylus), be sent to computer 43 via the port 57 on port 53, conductor 55 and the computer 43 corresponding to the x and the y coordinate of 62 positions, institute touch point.If the user touches the interior coordinate (in Fig. 6) of screen area of one of display image object 52; The x that touched of computer comparison and the content of y coordinate and GUI so; And user action is interpreted as the selection Drawing Object that touches 61, and has therefore selected the video conferencing system relevant with this image object.The user can operate the video camera relevant with the video conference endpoint of selected graphical representation then.Selected image object 61 can by height bright in case to the user illustrate camera control unit (remote controller) registered user's selection.Perhaps, amplify selected Drawing Object.According to an embodiment, selected Drawing Object is exaggerated when the size of other Drawing Object reduces.According to another embodiment, selected Drawing Object is exaggerated so that cover whole scene.
Use said touch-screen to carry out the operation of said (one or more) video camera.Camera control unit will provide vision, the sense of hearing and/or tactile feedback to the user when the user operates video camera control.Feedback to the user guarantee camera control unit registered user command.The example of visual feedback is that arrow key changes shape, size or color when pressing.An example of tactile feedback is camera control unit 40 involving vibrations equipment, and when pressing video camera control (for example arrow key) Vibration on Start-up equipment.The example of audio feedback is that camera control unit 40 comprises loud speaker, and camera control unit is sounded via said loud speaker when video camera control is pressed or carries out video camera control gesture.
According to one embodiment of present invention, the operation of video camera relate on touch-screen display show video camera control and from the user receive be relevant to those video cameras controls touch data so that the operation of control video camera.Control (upper and lower, left and right, amplify, dwindle etc.) for each touches and specify when generating the GUI computer-chronograph in the zone of GUI.When computer receives touch data (coordinate) things from touch-screen display 41, computer comparison coordinate and specified region and be associated with the reception touch data with for the video camera control command of institute's touch area appointment.
According to one example embodiment, the video camera control that is shown comprises one group of arrow key, or the similar button of expression direction, is used to control upper and lower, left and right the moving of video camera.The video camera control that is used to operate the camera zoom function comprises slider bar, or two buttons that amplify and dwindle for expression respectively.The user can be through the arrow key (or scaling key) of repeatedly pressing expectation, or through pressing and keeping, moves to desired locations up to video camera, operates video camera.Aforesaid example video camera control has been shown among Fig. 5.
According to one embodiment of present invention, the operation of video camera relates to usually or applying finger posture on some zone of GUI.Computer receives finger gesture as a series of continuous touch coordinates.Computer will be used for each finger gesture that touches control (upper and lower, left and right, amplify, dwindle etc.) and be appointed as the gesture on screen, carried out Anywhere or and the gesture of execution relevant with some zone.When computer when touch-screen display 41 receives touch datas (coordinate); And if a series of continuous coordinate infers gesture, so computer with coordinate and specified gesture comparison and with the reception touch data be associated for the video camera control command of performed gesture appointment.
According to one example embodiment, the control of the video camera that shown comprises virtual joystick, shown in Fig. 6 and Fig. 7.Virtual joystick 63 for example can comprise one group of arrow key 631 and centerbody 632 (or joystick icon).Through centerbody 632 is pulled on the direction of expectation, the user can freelyr shake-tilt camera with control intuitively, and can not be limited to progressively moving of 4 directions.In this embodiment, video camera can use one to move or touch upward mobile in any direction.In addition, the speed of video camera pan/inclination can be confirmed through the current location 702 of main body and the distance between the initial position 701.When the user discharged centerbody 631, video camera stopped to move.
According to another embodiment of the invention, when Drawing Object is a live video when presenting, video camera can through directly and Drawing Object operate alternately.Because the user can see the real image that video camera is caught at (in GUI) on the touch-screen display now, thus the user can operate video camera pan, inclination and convergent-divergent and move through in GUI, live video stream being carried out finger gesture, as shown in Figure 8.The user can control video camera pan/inclination through on video flowing, carrying out the drag and drop finger gesture, shown in Fig. 8 a.In this embodiment, the video flowing from current controlled video camera is upgraded during the drag and drop process continuously.With this mode, GUI allows the user on touch-screen display, to pull image everywhere, up to the view that finds expectation, just as physical object can move on desk or table surface.In addition, the user can carry out convergent-divergent through on institute's display of video streams, carrying out some predefined gesture, for example moves to be used for amplification and to dwindle, shown in Fig. 8 b through the contraction of continuously to the touch-screen applications gesture time, carrying out two or more fingers.Perhaps, zoom function can be through pressing and keeping the preset time cycle (for example 0.5 to 2 second) to start.After the predetermined time cycle, zoom icon and/or slider bar can be rendered as to illustrate and start zoom function.Then, can operate convergent-divergent through the finger that on level or vertical direction, slides, like Fig. 8 c to shown in the 8d.
According to a further embodiment of the invention, when image object is just showing live video when stream, the user can amplify the participant of selection through touching or touch for twice the participant of (or any other suitable gesture) live video in presenting, shown in Fig. 9 a.When touching the participant twice, camera control unit will be indicated with the related video camera (via local codec 26) of associated video stream and amplified this personnel.For fixing installation, for example the seat is fixed and video camera and participant between the constant meeting room of distance, this can be through shaking, tilt and be amplified to predefined camera position (presetting) to come easily to carry out.If the meeting room that is associated is not the installation of fixing, face detection algorithm can be used so so that confirm position and size near the face of x ' that is touched and y ' coordinate.If detect face; And facial position and size have been obtained; So camera control unit calculate suitable shake, inclination and convergent-divergent position be so that the participant that structure is selected; And send the video camera control command to codec, codec transfers to use Remote Camera control (FECC) agreement to indicate relevant video endpoint and video camera.
According to another embodiment of the invention, when Drawing Object is a live video when presenting, the user can amplify any other zone that one or more participants or live video are presented through the gesture structure interesting areas of 43 identifications that use a computer.Shown in Fig. 9 b; Can be through on touch-screen, pointing or object around the interesting areas navigation; Perhaps, define area-of-interest through by at least two corners (shown in Fig. 9 c) of on touch-screen, touching or touching for twice two or more finger definition area-of-interests.
Next; When the video camera control button that touches expectation on touch-screen in the graphic user interface that the user shows is perhaps used the finger gesture relevant with video camera control; According to top one or more embodiment, computer 43 receives touch data and video camera control command that they and codec are understood is associated from touch-screen display.
Then, computer sends and comprises the endpoint id of selected video conference endpoint and the order (or signal) of video camera control command.Relevant endpoint id identifies selected video flowing and initiates from the video conferencing system of which connection, and therefore identifies the FECC instruction and should be sent to which video conferencing system, and perhaps whether the video camera control command should be sent to its video camera.Order sends to codec 26 via the port 28 on port 47, communication link 56 and the codec 26.If the endpoint id that is received is the ID that receives codec 26, codec is to the video camera sending controling instruction that is connected to codec 26 so.If the endpoint id that is received is the ID that is connected to one of the net meeting system of codec; Codec generates the FECC instruction based on receive order and sends to the video conferencing system that is identified so, and the video conferencing system that is identified is transferred the video camera sending controling instruction to it.
According to one embodiment of present invention, camera control unit is a special equipment.Special equipment can be the acquiescence part of video conferencing system, perhaps can be the optional equipment that obtains separately.
According to another embodiment of the invention; Portable computing device; For example personal digital assistant, mobile phone, laptop computer or have touch screen interface and the similar portable computing device of the communication interface (for example TCP/IP) that video structure server 26 is supported can be used as camera control unit.Client software (video camera control client) can be downloaded and/or be installed on this portable computing device so that portable computing device can be as camera control unit according to the present invention.
Except processor, the computer 43 in the camera control unit 40 can comprise the storage medium that can store one or more according to an embodiment of the invention computer programs or component software on it.For example, the graphic generator that disposed can be stored on the storage medium of computer 43.In addition, storage medium can be stored the graphical program development that is used to create graphic generator and use, and can change and/or graphic generator is deployed in the software on the portable computing device.But storage medium is storage operating system software also, and other software that is used for operational computations machine system.
Fig. 4 is similar to Fig. 3, but is absorbed in aforesaid assembly of the present invention.Same numeral among Fig. 4 refers to the same components among Fig. 3.Invention system 40 allows to control codec 26 through using by the easy-to-use touch-screen 41 (guaranteeing the smart machine of logical operation) of personal computer 43 controls; Demonstration that can be through request gives for the second time chance so that correct choice has been made in checking to the user, and avoids wrong operation.
In more detail, computer 43 can be carried out the logical order of writing with computer programming language.Other suitable bus that computer 43 is installed via physics in PCI or the computer 43 is controlled the operation of codec; Codec 26 via communication link 56 is schematically represented in Fig. 4.According to one example embodiment, the communication between computer 43 and the codec 26 uses TCP/IP to exchange via communication link 56.Communication link 56 can be wired or wireless link, for example PAN, CAN, MAN, LAN, WLAN, WAN etc.Communication between codec 26 and the computer is back and forth order between the port 28 of the port 47 of computer 43 and codec 26.As be to be understood that, these communications meet manufacturer's API (API) that video constitutes server 26.
Also use touch-screen 41 to communicate by letter with the port of 57 indications with label 53 via the conductor of communication link shown in Fig. 4 and label 55 indications.Image from computer/graphic generator is sent to and is presented on the touch-screen display via port 42, conductor 51 and port 44.
With reference to Figure 10, similar process is followed in the whole communications between codec 26 and the computer 43.With reference to Figure 10; When the predefine incident when step 1000 occurs; Codec 26 sends command/signal in step 1010 to computer 43, and command/signal comprises one group of endpoint id of the video session end points that is currently connected to codec 26 (directly or via MCU) in the sign conference call at least.Said predefine incident can comprise: when video conference begins, and when new video conference endpoint adds ongoing meeting, when camera control unit is connected to codec 26 in the session, from the request of camera control unit the time, or the like.For example, use video conference endpoint C ' as shown in Figure 2, participant A on the user C calling video conference endpoint A ' and the participant B on the video conference endpoint B '.Video conference endpoint C ' has been connected to according to camera control unit of the present invention; And the codec 26 of (all end points is connected) video conference endpoint C ' sends order to the computer 43 of camera control unit when meeting begins, and is carrying out and identifying at least the endpoint id (being the endpoint id of video conferencing system A ', B ' and C ' in this case) of each video conference endpoint in the current talking with the expression meeting.
Next in step 1020, computer (graphic generator) is created the graphic user interface (GUI) that comprises scene 51 at least.Scene 51 is the special-purpose GUI zones that are exclusively used in the current connection end point that ongoing video conference is shown.Based on the endpoint id that is received, computer generates a block graphics object, and each is used for each endpoint id that receives.Drawing Object occupies the part or all of reserved area of scene.Even for each video conference endpoint generates a Drawing Object, the user can control the setting of scene, for example can omit the Drawing Object of expression local video conferencing endpoints.With its simplest form, Drawing Object comprises one or more incarnation and the textview field that comprises the information relevant with relevant video conferencing system.Text in the textview field can be an endpoint id itself, perhaps with the network equipment of memory or computer-accessible in the relevant information of endpoint id of storing, the for example title of participant's name, video conferencing system or address, endpoint id etc.In another example embodiment, Drawing Object comprises the live video of presenting from each video conferencing system.Computer sends GUI (image) via the port 44 on port 42, communication link 51 and the touch-screen display 41 to touch-screen display 41.
The user has the full entry person's of video conference conversation the diagrammatic representation that is very easy to understand now.Next, in step 1030, in order to control video camera, the user must select the video camera (or video conference endpoint) that will control through touching one of said Drawing Object 52 in the scene 51.In response to user's selection (touch), touch-screen 41 sends the x and the y coordinate of institute touch area via port 53, communication link 55 and port 57 to computer 43.The user that computer 43 is registered the video camera (video conference endpoint) that will control selects; And computer and graphic generator are handled from the information of touch-screen and for example through marking or amplify selected Drawing Object and upgrade GUI (scene), and therefore on the touch-screen images displayed retain.
In step 1040, the user is through touching touch-screen 41 and/or on touch-screen 41, carrying out finger gesture and handle the video camera that GUI (for example image object, Control-Menu, button, gesture) controls selected video conference endpoint, and is as above said more in detail.User's touch data sends to computer 43 with the form of x and y coordinate via link 55.
Next, in step 1050, when receiving touch coordinate or continuous in groups touch coordinate (gesture), computer 43 is touch coordinates and one group of GUI zone being appointed as the video camera control command and/or finger gesture relatively.Maybe when generating GUI, make indication and it is stored in the computer 43 addressable memories temporarily as the pre-configured indication of storing in the computer 43 addressable memories, carry out like this at least one video camera control command is appointed as at least one GUI zone and/or at least one finger gesture.If found clear and definite coupling, computer is associated institute's reception touch coordinate with the video camera control command so.
Next, in step 1060, be associated with touch order if computer receives touch coordinate with institute, computer 43 sends order to codec 26 so, comprises endpoint id and the control command that is associated at least.Codec 26 is analyzed endpoint id and the control command that is associated; And generate the FECC order and send it to relevant video conference endpoint, if perhaps endpoint id identifies said local video conferencing endpoints 20 and sends the video camera control command to its local video camera so.
In last step 1070, codec 26 sends the signal that action is accomplished via port 28, communication link 56 and port 47 to computer 43 then.In case accomplished action in the above described manner, computer 43 is waited for user's expressions of touch screen 41 next time, is connected the variation of video conference endpoint quantity in form of selecting with new video camera control command or new video camera or the conference call.
Figure 11 shows the computer 1201 that can realize the embodiment of the invention on it.Computer system 1201 comprises bus 1202 or is used to other communication mechanism of the information that transmits, with the processor 1203 that is connected with bus 1202 that is used for process information.Computer system 1201 also comprises the main storage that is connected to bus 1,202 1204 that is used for stored information and the instruction that will be carried out by processor 1203, for example random access storage device (RAM) or other dynamic memory (for example dynamic ram (DRAM), static RAM (SRAM) (SRAM) and synchronous dram (SDRAM)).In addition, main storage 1204 can be used for being stored in temporary variable or other average information during processor 1203 executes instruction.Computer system 1201 also comprises the read-only memory that is connected to bus 1202 (ROM) 1205 that is used to store the static information that is used for processor 1203 and instruction or other static storage device (for example programming ROM (PROM), can wipe PROM (EPROM) and electric erasable PROM (EEPROM)).
In response to one or more sequences of the one or more instructions that comprise in processor 1203 execute stores (for example main storage 1204), the part or all of treatment step that computer system 1201 is carried out in the embodiment of the invention.These instructions can be read in main storage 1204 from another computer-readable medium (for example hard disk 1207 or removable media drive 1208).One or more processors during multiprocessing is arranged also can be used to carry out the command sequence that comprises in the main storage 1204.In alternative embodiment, hard-wired circuit can be used to replace software instruction or with its combination.Therefore, embodiment is not limited to any particular combination of hardware circuit and software.
As stated, computer system 1201 comprises instruction that is used to preserve the technology programming according to the present invention and at least one computer-readable medium or the memory that is used to comprise data structure, form, record or other data wherein described.The example of computer-readable storage medium is CD, hard disk, floppy disk, tape, magneto optical disk, PROM (EPROM, EEPROM, EPROM) fast, DRAM, SRAM, SDRAM or any other magnetizing mediums, CD (for example CD-ROM) or any other light medium, punched card, paper tape or other physical medium with hole pattern.In addition, instruction can be stored in the carrier wave (or signal) and from it and read.
Storage in computer-readable storage medium any one or its combination; Embodiments of the invention comprise and are used to control computer system 1201, be used to drive be used to realize equipment of the present invention be used to make computer system 1201 can with the mutual software of human user.This software can include but not limited to device drives, operating system, developing instrument and application software.
Computer code devices of the present invention can be any soluble or executable code mechanism, includes but not limited to script, interpretable programs, dynamic link library (DLL), java class and complete executable program.In addition, section processes of the present invention can be distributed so that for more performance, reliability and/or cost.
Refer to any physical medium that participation provides instruction to be used to carry out to processor 1203 like term used herein " computer-readable recording medium ".Computer-readable recording medium can adopt many forms, includes but not limited to non-volatile media and volatile media.Non-volatile media for example comprises light, disk and magneto optical disk, for example hard disk 1207 or removable media drive 1208.Volatile media comprises dynamic memory, and for example main storage 1204.
Be used for execution in the one or more sequences that transmit one or more instructions to processor 1203 and can relate to various forms of computer-readable storage mediums.For example, instruction can initially be carried on the disk of remote computer.Remote computer can be loaded into dynamic memory and use modulator-demodulator to send instruction via telephone wire being used to realize that all or part of instruction of the present invention is long-range.Computer system 1201 local modulator-demodulators can receive the data on the telephone wire and use infrared transmitter that data transaction is infrared signal.The infrared detector that is connected to bus 1202 can receive the data of carrying in the infrared signal and data are placed on the bus 1202.Bus 1202 transmits data to main storage 1204, and processor 1203 is from main storage 1204 retrievals and execution command.Before or after being carried out by processor 1203, the instruction that main storage 1204 receives is stored on memory device 1207 or 1208 alternatively.
Network link 1214 provides data communication through one or more networks to other data equipment usually.For example, network link 1214 can be provided to the connection of another computer through local network 1215 (for example LAN) or through the device of ISP's (it provides communication service through communication network 1216) operation.Local network 1214 and communication network 1216 for example use electricity, electromagnetism or the light signal of carry digital data streams and the physical layer that is associated (for example 5 types of CAT cables, coaxial cable, optical fiber etc.).Can realize through baseband signal or based on the signal of carrier wave to computer system 1201 with from the signal that passes through diverse network of its transmission numerical data with on network link 1214 and through the signal of communication interface 1213.Baseband signal transmits data as unmodulated electric pulse, and it has described bit-stream of digital data, and wherein term " position " should broadly be interpreted as and mean symbol, and wherein each symbol transmits one or more at least information bits.Numerical data also can be used to modulated carrier, for example uses via the conductive medium propagation or through amplitude shift keying signal, phase shift keyed signal and/or the frequency shift keyed signals of propagation medium as the electromagnetic wave transmission.Therefore, numerical data can be sent as unmodulated base band data and/or send in being different from the predetermined frequency band of base band through modulated carrier through " wired " communication channel.Computer system 1201 can transmit and receive data through network 1215 and 1216, network link 1214 and communication interface 1213, comprises program code.In addition, network link 1214 can provide connection to mobile device 1217 (for example PDA(Personal Digital Assistant), laptop computer or mobile phone) through LAN 1215.
According to top instruction, many modifications of the present invention and variation are possible.Therefore be appreciated that within the scope of the appended claims, can except specific description here, putting into practice the present invention.
Claims (18)
1. touch screen remote controller that is used for the local video conferencing endpoints, said video conference endpoint comprises:
Monitor with can shake, at least one at least one video camera in inclination or the convergent-divergent,
Have the codec that is used for said touch screen remote controller communicating devices, said codec is configured to set up video conference via network and one or more Remote Video Conference end points,
Said touch screen remote controller comprises touch-screen display and computer, and this computer is configured to:
At least one of end points from the said video conference of said codec reception sign or a plurality of endpoint id;
Generate the graphic user interface (GUI) that comprises a Drawing Object that is used for said each video conference endpoint of video conference at least;
On touch-screen display, show said GUI;
Reception is from said touch-screen display and identified the touch data of selected Drawing Object;
Specifying at least one zone or at least one finger gesture of said GUI is as at least one video camera control command;
Receive touch data from said touch-screen display, and the touch data that is received is associated with said at least one video camera control command, and
The video camera control command is sent to said codec.
2. equipment according to claim 1, wherein, said Drawing Object comprises the video flowing from each video conference endpoint.
3. equipment according to claim 2, wherein
Said codec comprises the video converter unit, and this video converter unit is configured to receive the meeting video flowing from two or more end points, handles said stream, and output has reduced corresponding one group of video flowing of resolution and/or frame per second; And
Said computer is configured to receive said video flowing group and in said GUI, shows one or more in the said video flowing.
4. equipment according to claim 1, wherein, said computer also is configured to
Generate the independent control area of said GUI, said control area comprises the joystick icon,
Specify the video camera control command based on image object with respect to the position and the distance of the initial default position on the said touch-screen display.
5. equipment according to claim 1, wherein, said computer also is configured to
Be based on the last finger gesture of using of one of said Drawing Object and specify the video camera control command.
6. equipment according to claim 1 is specified amplification or reduction camera control command for clutching or unclasp gesture.
7. equipment according to claim 1 is for the touch of respective direction on the said touch-screen with pull gesture and specify directed mobile camera control command.
8. equipment according to claim 1 is specified amplification or reduction camera control command for clutching and unclasp gesture.
9. equipment according to claim 1, wherein
Said computer or codec comprise and being used in the facial face-detecting unit of said meeting video flowing or said video flowing location; And
Wherein, said computer also is configured to the face based on user's touch data and said location, generates the video camera control command of amplifying for the participant who is identified via said GUI and touch-screen display by the user.
10. method of operating that is used for during the video conference between some video conference endpoint one or more video cameras that control is associated with video conference endpoint; Wherein said video conference endpoint comprise codec, monitor and can shake, at least one at least one video camera in inclination or the convergent-divergent, said method comprising the steps of:
Communication link between touch screen remote controller and said remote controller and the local codec is provided, and at said remote controller place:
At least one of end points from the said video conference of said local codec reception sign or a plurality of endpoint id;
Generate the graphic user interface (GUI) that comprises a Drawing Object that is used for said each video conference endpoint of video conference at least;
On touch-screen display, show said GUI;
Reception is from said touch-screen display and identified the touch data of selected Drawing Object;
Specify said GUI at least one the zone and/or at least one finger gesture as at least one video camera control command;
Receive touch data from said touch-screen display, and institute's reception touch data is associated with said at least one video camera control command;
The video camera control command is sent to said local codec.
11. method according to claim 10, wherein, said Drawing Object comprises the video flowing from each video conference endpoint.
12. method according to claim 11 also comprises:
One or more reception meeting video flowings in said local codec from said end points are handled said stream, and output has reduced corresponding one group of video flowing group of resolution and/or frame per second; And
Send said one group of video flowing to said touch screen remote controller, and in said GUI, show said video flowing.
13. method according to claim 10, wherein, the step that generates GUI also comprises:
Generate independent control area, said control area comprises the joystick icon,
Specify the video camera control command based on image object with respect to the position and the distance of the initial default position on the said touch-screen display.
14. method according to claim 10, wherein, the step of said appointment comprises
Being based on one of said Drawing Object on the said touch-screen display goes up the finger gesture of using and specifies the video camera control command.
15. method according to claim 10, wherein, the step of said appointment comprises for clutching and unclasp gesture specifies amplification or reduction camera control command.
16. method according to claim 10, wherein, the step of said appointment comprises for the touch of respective direction on the said touch-screen and pulls gesture specifies directed mobile camera control command.
17. method according to claim 10, wherein, the step of said appointment comprises for clutching and unclasp gesture specifies amplification or reduction camera control command.
18. method according to claim 10 also comprises
The location is facial in said meeting video flowing and/or said video flowing; With
Based on the face of said user's input and said location, generate the video camera control command of amplifying for the participant who identifies via said GUI and touch-screen display by the user.
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| NO20093142 | 2009-10-14 | ||
| PCT/NO2010/000363 WO2011046448A1 (en) | 2009-10-14 | 2010-10-14 | Device and method for camera control |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP2489182B1 (en) | 2017-06-21 |
| US9172911B2 (en) | 2015-10-27 |
| WO2011046448A1 (en) | 2011-04-21 |
| EP2489182A4 (en) | 2013-10-09 |
| NO20093142A1 (en) | 2011-04-15 |
| US8619112B2 (en) | 2013-12-31 |
| NO332170B1 (en) | 2012-07-16 |
| CN102648626B (en) | 2016-01-13 |
| US20140146125A1 (en) | 2014-05-29 |
| EP2489182A1 (en) | 2012-08-22 |
| US20110085016A1 (en) | 2011-04-14 |
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